Question 318470
{{{ graph( 300, 300, -6, 5, -10, 10, x^3-6x^2+11x-6) }}} 
From the graph, you can see that the roots are {{{a=1}}},{{{a=2}}}, and {{{a=3}}}
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{{{a^3-6a^2+11a-6=(a-1)(a-2)(a-3)}}}